18" Foil Square Under the Sea Baby Shower Balloon 1 Foil Square Under The Sea Baby Shower Balloon Square Baby Shower Balloon measures 18" when fully inflated (ships uninflated) Pair with other Under The Sea Baby Shower decorations from Unique A darling addition to a gender neutral baby shower decoration as a single decoration or as part of a balloon bouquet Coordinate with other Under The Sea Pals Baby Shower decorations from Unique